Miter-box



No. 752,406. PATENTE!) PEB. 16, 1904.

L. PZIHGHilLSl` MITBR BOX.

ARPLIGATION FILED DBO. 17.11902. y

No MODEL. a 2 SHEETS-SHEET 1,

JKT' l g Tm TL/ 5 39 MITE-R BOX. y

y APPLIQATION FILBDDBG. 17. 1902. No MODEL. 2 s imn'rsvsmn 2.

a/ l 2q 4.4' IHM 5 FI" 2* mii 2 ff f "1' K ll 'ulllllll lgk UNITEDSTATES atented February 16, 1904.

PATENT OEEicE.

LEWIS P. NICHOLS, or rirrsnene, rENNsYLvANiA.

MITER-Box.

SPEGIFICATIONforming part of Letters Patent No. 752,406, dated February16, 1904, i Application iiled December 17, 1902.y Serial No. 135,542.(No model.)

To a/ZZ whom, it may concern:

table member of the bed or table.

a detached detail perspective view of one of Fig. 4 is a rear elevationof the box.

Beit known that I, Lewis P. NIcnoLs, a citizen of the United States ofAmerica, residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have Vinvented certain new and useful Improvements inMiter-Boxes, of which the following is aspecication, reference being hadtherein to the accompanying drawings.

This invention relates to certain new and useful improvements inmiter-boxes, and has for its primary object to provide a miter-box bymeans of which shorter-length pieces, as well as pieces of greaterwidth, may be more readily cut than is possible with the ordinarymiter-boX.

The invention has for another of its main objects to provide amiter-boxby means of which any desired bevel or miter may be accuratelycut, and, further, to provide means whereby a double bevel may be cut asreadily as a single bevel or cut.

A still further object of the invention is to construct a miter-box inwhich the saw-holding means is adjustable to-swing to Vany desired anglebetween forty-five degrees and ninety degrees; further, to provide meansfor clamping in the desired position, and, still further, to providemeans for holding special shapes in the box in a secure manner to enablethe desired cut vor miter to be made.

With the above and other objects in view the invention consists in thenovel construction, combination, and arrangements of parts, as will behereinafter more Specifically described, and then particularly pointedout in the claim, and in describing the invention in 'detail referencewill be had to the accompanying drawings,forming a part of thisspecification, and wherein like numerals of reference will be employedto indicate like parts throughout the-different views, in which- Figure1 is afront elevation of my improved ruiter-box. Fig. 2 is a detail topplanview of the same. Fig. 3'is a transverse vertical sectional viewtaken on the line 3 3 of Fig. 2. Fig. 5 is a cross-sectional view of apart of the rota- Fig. 6 is `vthe detachable clamping-bars carried onthe` 'tabie or bed. Fig. 7 is a detached detail side elevation of a partof one of the extensible saw-holding members. Fig. 8 is a like view ofthe other saw-holding member. Fig. 9 is an underneath plan view of therotatable member of the bed or table, and Fig. 10 is a detailperspective view of a part of one of the adjustable saw-holding guidesfor varying the depth of the cut. e

To put my invention into practice, I provide a table or bed-plate, Whichmay be said to comprise three members-two stationary end members 2 andan intermediate or central rotatable member 1, substantially circular inform, with projections 8 and 11 at the front and rear side of itsperiphery for a purpose as will more presently appear. The device issuitably supported by legs or brackets 3 3, which may be cast integralwith the end members of the table or bed-plate or suitably securedthereto in any desired manner. The two end members are integral witheach other, rbeing connected to a circular track 4, spaced from therotatable member 1, the spokes sof which connect with a central hub 6,the latter formingV a central bearing for the rotatable member 1 of thetable or bed-platerto rotate upon. To this end the member 1 is providedcentrally'of its underneath face with a boss 7, tapered to fit in a seatprovided therefor in the upper face'of, the hub 6. The table orbed-plate is provided at the front with a projectionS', and therotatable member is connected, through this projection, by screws 9 to adepending bracket-bearing 10, grooved on its inner face to engage thetrack 4. A projection 11 'at the rear of the rotatable circular member 1is connected by screws 9 to a like grooved depending bracket-bearing10', engaging the track 4 at the rear of the box. The projection 11 hasoutwardly-protruding arms 12, in the ends of which are mounted setscrews14, the Shanks of which operate when the set-screws are loosened insegmental slots 15, formed in a circle 16, which is attached to the rearsaw-guide.' The circle 16 is graduated on the front face,whereby anydesired cut may be made exact, as will more fully appear hereinafter. Itwill be evident that although I IOO tube '24 upward therewith, and theset-screw vsaws employed for this purpose.

ed to be swung over to any desired angle,v

whereby the desired bevel may be cut. One of these guides is adjustabletransversely of the device, whereby a board or piece of greater widththan the distance between the upright* walls of the box and the frontguide when the latter is in normal position may be cut. In the presentillustration I have shown the front guide as the adjustable onetransversely of the device, and these guides, which also form theholders lfor the saw, are adjustable lengthwise, whereby to vary thedepth of the cut desired to be made. Describing the construction of thepresent illustration,- the front guide comprises a slotted tubular post17 terminating at its lower end in a head or boss 18, which carries arod or shaft 19, provided at a point near its outer end with a radiallug 20. The rear guide likewise consists of a slotted tubular lpost 17terminating at its lower end in a head or boss 18, to which is connecteda tube 21, provided from its free end to apoint adjacent the head orboss 18 with a slot 22 and a series of transverse notches 23,communicating with said slot. The tube 21 extends through the rearbearing-bracket 10, underneath the rotatable member, through the taperedboss 7 into registry with an opening provided in the frontbracket-bearing 10, and the rod or shaft 19 telescopes into said tube 21and is locked in the desired position by the engagement of the lug 2Ointo one of the notches 23. Fitted to telescope in each of the verticalslotted tubular posts 17 are slotted tubes 24, terminating in heads 24nat their upper ends, which heads are preferably provided with enlargedslots 25 to receive the enlarged back (not shown) which is ordinarilyemployed upon The slots in the tubes 24 do not extend entirely throughthe lower ends of the tubes, and the elevating or lowering of thesetubes within the posts 17 consequently regulates the depth of the sawcut which may be made. The annular shoulder at the lower ends of theheads 24*L rests upon the upper ends of the posts 17 when the tubes 24are in their'lowermost position, and at this time the saw is free to cutentirely through the piece being operated upon. The tubes 24 areelevated and held in an adjusted position by suitable means,` apractical form being shown in the present illustration and consisting ofa slotted supporting-bar 26,hung

on a set-screw 27, attached to the posts 17, near the upper endsthereof, the bar 26 hav'- ing a bent-in upper end 28 to engage the tubez 24 underneath the lower end of the head 24, When this bar 26 iselevated, it will carry the 27 being tightened to hold the bar in theadjusted position the tube 24 is held elevated in theadjusted position,since it rests upon the upper end of the bar.

The rotating member 1 of the table or bedplate is provided around oneside of the periphery with graduation-marks 29 for determining thedifferent bevels, as will be apparent. Likewise the circle 16 isprovided with graduation-marks 16 for determining the desired bevel. Therotatable member of the table or bed-plate is locked in any desiredposition by means of a spring-bolt 30, the inner end of which engages innotches 31, provided therefor in the circular track 4, this bolt beingheld normally in engagement with one of the notches by a spring 32,arranged thereon between a supporting-bracket 33 and a pin 34,extendingtransversely through the locking-bolt. The bracket 33 is castintegral with the front bearing-bracket 10, and through this bracket 33and through the front bearing-bracket VlOis extended a screw-rod 35 toimpinge upon the periphery of the circular track, so that the table maybe locked at any point between the notches 31, the screw-rod beingprovided on its outer end with a suitably knurled head 36. y

In order that extremely short pieces may be beveled in the box, Iprovide adjustable walls 37, the inner ends of which are cut at an angleof forty-five degrees to give clearance, whereby the vsawV may be swungover to any desired angle'. These walls 37 are provided with slots 38 toreceive set-screws 39, engaging into the rear edge of the stationarymembers of the table or bed-plate. In Fig. 4 these walls are shown infull lines in their extended position, and in the left-hand end of saidview theyare shown in dotted lines moved inwardly, whereby toaccommodate a shorter piece.

In using ruiter-boxes it has often been found diflicult and with manyforms of boxes impossible to hold special-shaped pieces-such, forinstance, as what is known in the trade as spring-molding. To enable meto securely hold special shapes while cutting the same, I provide thetwo stationary members of the table or bed-plate with transverse slots39', and I then employ a slidable bar 40, which lies upon top of thetable or bed-plate and is held in the adjusted position by set-screws41, the shanks of which extend through the slots and into the bars andthe shoulders of which screws engage upon theunderneath face of thetable to hold the bars secure.

In order that the saw will not engage with IOO IIO

inthis groove insert a strip 42, composed of Y Y wood or other materialwhich will not dull the i saw-teeth when the latter engage with theSame. As this strip of material becomes damaged from constant use itYmay readily be re- ISO moved and a new strip inserted, which mayreadily be accomplished after the front guide.

is withdrawn, so as to give free access to the front end of the groovein the table or bedplate.

In operation it will be readily observed that the piece is to be placedupon the table or bedplate, and assuming itis desired to cut but asingle bevel thereon the rotatable member of the table or bed-plate willbe swung around to the desired degree-and locked in this position, whenthe cut may be made. Assuming it is desired to out a double bevel at thesame time, the table is swung around to the desired degree and thesaw-guides then swung over to the proper angle, so that when the cutismade a double bevel will be produced.

It is to be noted that with this construction I am enabled to cutdovetail grooves or the like as readily as a single bevel. It is also tobe noted that, the saw-guides being adjust-A able, I may place a boardor piece of extreme Width in the box and readily cut the desired bevelthereon, whether the saine be a single or double bevel, and also by theadjustable walls of the box I am enabled tol bring the walls closeenough together to hold an eX- tremely short piece of material.

While I have herein shown and described a preferable form of myinvention as it has been practiced by me, yet I do not wish to limitmyself to the specific construction shown, as

a seat, a rotatable member spaced from the track and formed with a frontprojection, a rear projection having protruding arms and a central bossfitting in the seat, depending front and rear grooved brackets securedto the rotatable member, the front saw-guide having a slotted tubularpost and a horizontal rod formed with a radial lug, the rear saw-guidehaving a slotted tubular post and a tube receiving the rod, and formedwith a slot and transverse notches receiving the radial lug on the rod,the slotted tubes having heads and fitting in the posts, the slottedadjustable bars on which the tubes are `supported by their heads, andthe slotted circle carried by the rear tubular post and adjustablysecured by clamp-screws -to the protruding arms.

Intestimony whereof I ax my signature in the presence of two witnesses.

LEW'IS P. NICHOLS.

Witnesses:

H. C. EVERT, A. M. WILSON.

